Catalyst-Free Oxytrifluoromethylation of Alkenes through Paired Electrolysis in Organic-Aqueous Media
作者:Wolfgang Jud、C. Oliver Kappe、David Cantillo
DOI:10.1002/chem.201804708
日期:2018.11.22
A mild, catalyst‐free electrochemical oxytrifluoromethylation of alkenes has been developed. The procedure is based on the paired electrolysis of sodium triflinate and water in an undivided cell. Anodic oxidation of the triflinate anion generates trifluoromethyl radicals that react with the alkene. Water plays a dual role as oxidant for the cathode and nucleophile. The method has been utilized to prepare
A mild and practical protocol for the metal-free trifluoromethylation of styrenes using NaSO2CF3 (Langlois reagent) and TBHP was developed. The approach provides efficient access to -trifluoromethylated ketones and alcohols in moderate to good yields.